From 02ea439a4356558654a837f420cf62af0b8f3bc4 Mon Sep 17 00:00:00 2001 From: Jonathan Ellis Date: Tue, 26 Feb 2013 09:49:22 -0600 Subject: [PATCH] add buffer size comments patch by Marcus Eriksson for CASSANDRA-5291 --- conf/cassandra.yaml | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/conf/cassandra.yaml b/conf/cassandra.yaml index 8e910d841c..6d0528a699 100644 --- a/conf/cassandra.yaml +++ b/conf/cassandra.yaml @@ -389,7 +389,15 @@ rpc_server_type: sync # rpc_send_buff_size_in_bytes: # rpc_recv_buff_size_in_bytes: -# uncomment to set socket buffer size for internode communication +# Uncomment to set socket buffer size for internode communication +# Note that when setting this, the buffer size is limited by net.core.wmem_max +# and when not setting it it is defined by net.ipv4.tcp_wmem +# See: +# /proc/sys/net/core/wmem_max +# /proc/sys/net/core/rmem_max +# /proc/sys/net/ipv4/tcp_wmem +# /proc/sys/net/ipv4/tcp_wmem +# and: man tcp # internode_send_buff_size_in_bytes: # internode_recv_buff_size_in_bytes: